US3303150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax polymer compositions comprising petroleum wax, polyethylene and a copolymer of ethylene and at least one c3-c8 olefin
Assignee: Shell USA Inc
•
Filing: 1962-04-17
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Granted: 1967-02-07
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Expires: 1982-04-17
Abstract
No abstract record available.
Inventors
- 👤 Cyril B Coenen
- 👤 Harry F Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:12
CPC Classifications
C; C10; C10G; C10G73/00; C08; C08L; C08L23/00; C08L23/02; C08L91/00; C08L91/06; C08L91/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A COMPOSITION OF MATTER COMPRISING 50-85% BY WEIGHT OF A PETROLEUM HYDROCARBON WAX, AND 15-50% BY WEIGHT OF A MIXTURE OF POLYETHYLENE (A) AND A HYDROCARBON COPOLYMERIZATION PRODUCT (B) OF ETHYLENE AND AT LEAST ONE 3-8 OLEFIN, THE COPOLYMERIC PRODUCT COMPRISING 80-95 MOL PERCENT OF ETHYLENE UNITS AND HAVING AN INTRINSIC VISCOSITY OF 0.3-6.0, THE WEIGHT RATIO OF A:B BEING BETWEEN ABOUT 2:1 AND ABOUT 1:5.
Claim 2
Dependent Claim
66 words
A COMPOSITION OF MATTER COMPRISING 50-85% BY WEIGHT OF A PETROLEUM HYDROCARBON WAX, AND 15-50% BY WEIGHT OF A MIXTURE OF POLYETHYLENE (A) AND A HYDROCARBON COPOLYMERIZATION PRODUCT (B) OF ETHYLENE AND AT LEAST ONE 3-8 OLEFIN, THE COPOLYMERIC PRODUCT COMPRISING 80-95 MOL PERCENT OF ETHYLENE UNITS AND HAVING AN INTRINSIC VISCOSITY OF 0.3-6.0, THE WEIGHT RATIO OF A:B BEING BETWEEN ABOUT 2:1 AND ABOUT 1:5.
References Cited (Backward Citations)
CA620375A
Cited
US2582037A
Cited
US2728735A
Cited
US2691647A
Cited
US2773053A
Cited
US3210305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |